News — Temperature/RH

The actual area being measured is determined by the distance-to-spot ratio of the IR thermometer you are using, and this varies from model to model. As the distance from the object being measured increases, the spot size of the area being measured also increases.  For example, Sper Scientific’s IR Pen has a distance to spot ratio of 6:1 meaning that at 6" from the target it will measures the temperature of a 1" circle. At 12" it will measure a 2" diameter and so forth. See Sper's full line of Infrared Thermometers here.

  Used for greenhouse temperature monitoring, the Sper Scientific Min-Max Thermometer is available in two models. Model 736680 includes a magnetic float reset and features dual scales of -50/50°C & -60/120°F. Model 736690 features a push-button reset and dual scales of -50/50°C & -60/120°F. Sper Scientific Min-Max Thermometers allow easy spot checking of temperature in a greenhouse or other temperature-sensitive environment.  Sper Scientific Min-Max Thermometers are available at SperDirect.com.